woodruff. tonight begins a weeklong focus on guns hereonpbs, "afternewtown." on the newshour this evening, we look at political and other developments since the december tragedy and zero in on the gun debate in colorado. >> in the divisive atmosphere of the gun debate, both sides, at the federal and state level, say they know the coming months won't be easy. but they will be critical. >> ifill: then, we take up the arguments for and against the proposed construction of the keystone pipeline, as environmental activists mounted a protest this weekend. >> woodurff: ray suarez updates the hugo chavez story, after the president's surprise return to venezuela following more than two months of cancer treatment in cuba. >> ifill: and jeffrey brown talks with filmmaker kirby dick about his oscar-nominated documentary "the invible war," detailing the high rate of sexual assault in the u.s. military. >> 86% of men and women who are sexually assaulted in the military don't report. they experience reprisals that are, in many ways, a second betrayal that's even worse than the actual rape i

. at the time i want my co-host to come out here. he's the hostofpbs's designsquad. and he is uber smart. mit grad. has his own company. hold on nate. how do you feel about winning the ipad mini? >> good. >> what's your name? >> garret. >> where are you from? >> houston. >> you are enjoying dc? >> yup. >> here we go. >> all of you that have been watching, i've got this thing in my ear they are talking to me, i've got this going on here. now we're ready to announce our top five. at least the first one live on tv. are you game for that? all right. so i'll let you do it. >> we can't in good conscious make you wait another minute. the first team i announce are going to stay here while the other four teams will be escorted to the potomic 4 room and it will be sequestered. the five finalist teams are. midatlantic. >> that's our local team. all right. come on up. you guys remember we featured them live in our 7:00 hour and they are one of the top five finalists. okay. let me ask. do i have time to do the other four teams? yes. okay. here we go. quickly. the next top finalist is from philadelphia. [

a documentarywithpbs's "frontline"on adam lanza. susan, you spoke with the connecticut state police. what are they telling you? >> as police put it, they're saying that "we're dealing with a shooter who is dead and now we're trying to rebuild history." police are downplaying the cbs report. quoting here, here's what they're telling me, "there's no basis to the cbs story. we have not established a motive. it's inaccurate. i talked with cbs and told them that. the cbs story is not accurate whatsoever." however, the spokesman also told me that the possibility that lanza was trying to outdo norway has not been ruled out nor has anything else. investigators reportedly suggest that adam lanza may have been trying to one-up another mass murder by topping anders breivik in norway, as you said he killed 77 people, mainly teenagers. cbs news quotes law enforcement sources who found evidence of that as a possible motive in newtown. part of the evidence? news articles. "the hartford courant" reports several stories about the massacre were discovered in one of lanza's two bedrooms. connecticut investi

battle for elephants. airs next wednesdayonpbs. comingup, an olympian's day in court. we'll have a report from the trial of track star oscar pistorius and discuss fallen heroes. ahead on "now." i've always had to keep my eye on her... but, i didn't always watch out for myself. with so much noise about health care... i tuned it all out. with unitedhealthcare, i get information that matters... my individual health profile. not random statistics. they even reward me for addressing my health risks. so i'm doing fine... but she's still going to give me a heart attack. we're more than 78,000 people looking out for more than 70 million americans. that's health in numbers. unitedhealthcare. ♪ ♪ no two people have the same financial goals. pnc works with you to understand yours and help plan for your retirement. visit a branch or call now for your personal retirement review. let's see what you got. rv -- covered. why would you pay for a hotel? i never do. motorcycles -- check. atv. i ride those. do you? no. boat. house. hello, dear. hello. hello. oh! check it -- [ loud r&b on car radi

. adam lanza is the subject of a front line documentaryonpbstonight.according to reporters, police investigators found thousands of dollars worth of graphically violent video games in the lanza household. >> i think he did what he knew how to do. graphically violent video games don't make you turn into violence if that's not your predisposition. but this kid had a lot going on. >> let's bring in msnbc contributor ari melber, correspondent for "the nation" and msnbc contributor goldie taylor, managing editor of the goldie taylor project. good afternoon to both of you. ari, we're learning more from these reports of a darkly obsessive behavior, possibly inspired by other mass shooters on the part of adam hahn lanza, including the suggestion that anders breivik may had have some influence. how do we focus on improving the provision of mental health services at the same time as addressing things like high capacity magazines? because it seems to me as though the mental health component has kind of been lost in the discussion more recently. >> i think it has been somewhat lost and it goes

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